I love discovering lesser-known fruits — my recent finds include white sapotes and tayberries — so I couldn't say no when specialty produce company Frieda's offered to send me an exotic fruit called the feijoa. Pronounced "fe-ho-a," feijoas (also known as pineapple guavas or guavasteens) originated in South America and are related to — you guessed it — the guava. Learn more about them when you keep reading.